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2026 Ranking

Best Security Companies in Washington

Ranking of the best private security companies in Washington, District of Columbia. The order prioritizes verified state licensing, track record and verified reviews; profile views and recommendations only fine-tune the order.

Verified state license Real user views 522 companies in Washington

We're still gathering recommendations and verified customer reviews in Washington. In the meantime, the order is based on license status and profile views.

Top-ranked companies in Washington

  1. 1
    1C

    1st Class Security Services, LLC

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  2. 2
    A&

    A & D SECURITY CONSULTANTS

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+8
    Get quotes in Washington
    Licensed
  3. 3
    AR

    A.C. ROMAN ASSOCIATES, INC.

    State Licensed
    Washington
    Private Investigation
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    Licensed
  4. 4
    AP

    A.M.L Protective Services LLC

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  5. 5
    AS

    A.P.S. Security LLC

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  6. 6
    AN

    ABC NEWS, INC.

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  7. 7
    AS

    Abraham Security & Training Services Inc.

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  8. 8
    AL

    ADC LTD NM INC.

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  9. 9
    AS

    ADMIRAL SECURITY SERVICES

    State Licensed
    Washington
    Security GuardsEvent SecurityResidential & HOA Security+7
    Get quotes in Washington
    Licensed
  10. 10
    AS

    ADP SCREENING & SELECTION SERVICES

    State Licensed
    Washington
    Private Investigation
    Get quotes in Washington
    Licensed

All state licensed security companies in Washington

522 companies with a verified, active state license, ranked by track record and reputation. All checked against official license records.

  1. 11Advantage Surveillance, LLC State Licensed· Private Investigation
  2. 12AESecurity, Inc. State Licensed· Security Guards
  3. 13AFOGNAK DIVERSFIED SERVICES, Inc. State Licensed· Security Guards
  4. 14Alexander Security Consultants LLC State Licensed· Security Guards
  5. 15Allied Universal Compliance and Investigations, Inc. State Licensed· Private Investigation
  6. 16Alpha Security, Inc. State Licensed· Security Guards
  7. 17AMERICAN EAGLE PROTECTIVE SERVICE CORPORATION State Licensed· Security Guards
  8. 18American Guard Services, Inc. State Licensed· Security Guards
  9. 19AMERICAN PROTECTION PROFESSIONALS LLC State Licensed· Security Guards
  10. 20American Protection Solutions, LLc State Licensed· Security Guards
  11. 21AMERICAN SECURITY PROGRAMS INC. State Licensed· Security Guards
  12. 22AMERICAN UNIVERSITY State Licensed· Security Guards
  13. 23ANDY FRAIN SERVICE, INC. State Licensed· Security Guards
  14. 24Angela Valdez State Licensed· Private Investigation
  15. 25AOK Protective Services State Licensed· Security Guards
  16. 26APEX SECURITY GROUP, LLC State Licensed· Security Guards
  17. 27Apex Security LLC d/b/a K17 Security State Licensed· Security Guards
  18. 28APOD Group, LLC State Licensed· Security Guards
  19. 29Arcadion Security Group, LLC State Licensed· Security Guards
  20. 30ARCHANGEL GLOBAL SECURITY, LLC. State Licensed· Security Guards
  21. 31Area Probe, Inc State Licensed· Security Guards
  22. 32Ares Defense Group, LLC State Licensed· Security Guards
  23. 33Aron Security Inc. State Licensed· Security Guards
  24. 34Aspis Protection Service LLC State Licensed· Security Guards
  25. 35Asset Protection & Security Services State Licensed· Security Guards
  26. 36Associated Investigators Inc. State Licensed· Private Investigation
  27. 37ASSOCIATED PROTECTIVE SERVICE INC. State Licensed· Security Guards
  28. 38Assured Concepts, L.L.C. State Licensed· Security Guards
  29. 39AT Protective Services, LLC State Licensed· Security Guards
  30. 40AT-RISK INTERNATIONAL, INC. State Licensed· Private Investigation
  31. 41ATLAS INTERNATIONAL SECURITY & INVESTIGATIVE SERVICES State Licensed· Security Guards
  32. 42AX9 Security, Inc. State Licensed· Security Guards
  33. 43B. I. S. Protection, Consultants, Investigations, and Protection Services State Licensed· Security Guards
  34. 44B.J. SEEBOL State Licensed· Private Investigation
  35. 45Barbican Advisory LLC State Licensed· Security Consulting
  36. 46BASS PROTECTION SERVICES, LLC State Licensed· Security Guards
  37. 47BDS PROTECTIVE SERVICES INC State Licensed· Security Guards
  38. 48BEACON INVESTIGATIVE SOLUTIONS State Licensed· Private Investigation
  39. 49BEEHIVE RESEARCH State Licensed· Private Investigation
  40. 50Bering Global Solutions, LLC State Licensed· Security Guards
See the remaining 472 licensed companies in the directory

Ranking methodology

The order reflects real, verifiable signals that are hard to manipulate. Companies with a verified state license appear first; within that group we prioritize the best-reviewed (verified reviews) and the most established according to official records. Profile views and community recommendations only fine-tune the order — a couple of votes can't move positions. For each company we show exactly which signals back its position.

  • State license — we verify each active license against state licensing boards like California BSIS and Illinois IDFPR. Licensed companies appear first.
  • Real profile views — how many people viewed the company's profile over the last 30 days.
  • Community recommendations — user votes with anti-fraud controls (fingerprint dedup).
  • Verified customer reviews — customer rating and review volume, when available.

Looking for more options in Washington?

Browse the complete directory with all 522 private security companies listed in Washington, filter by service type and compare pricing.

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Security services in Washington

Security Guards en WashingtonArmed Security Guards en WashingtonMobile Patrol en WashingtonEvent Security en WashingtonFire Watch Services en WashingtonExecutive Protection en WashingtonK9 Security en WashingtonLoss Prevention & Retail Security en WashingtonCorporate Security en WashingtonWarehouse & Industrial Security en WashingtonResidential & HOA Security en WashingtonConstruction Site Security en WashingtonAlarm Monitoring en WashingtonVideo Surveillance & CCTV en WashingtonAccess Control en WashingtonPrivate Investigation en WashingtonArmored Transport & Cash-in-Transit en WashingtonSecurity Consulting en Washington

More about private security in Washington

Directory of WashingtonAll security companies, with search and pagination.State Licensed in WashingtonOnly companies with an active state license.
See all security companies in District of Columbia

Frequently asked questions

What are the best private security companies in Washington?
Top companies in Washington include 1st Class Security Services, LLC, A & D SECURITY CONSULTANTS, A.C. ROMAN ASSOCIATES, INC., A.M.L Protective Services LLC, A.P.S. Security LLC, based on their active state license and the volume of profile views and community recommendations on HireSecurityNow.com. The order updates continuously based on these signals.
How is the ranking of security companies in Washington determined?
Companies with a verified, active state license appear first, checked against official licensing board records like California BSIS and Illinois IDFPR. Within that group, the order reflects real profile views over the last 30 days, community recommendations (with anti-fraud controls) and verified customer reviews when available.
Are the ranked companies state licensed?
We verify each company's license status against official state licensing board records. Each company's profile shows its license number and status when it holds an active license.
How do I hire one of these companies in Washington?
You can get free quotes from any company in the ranking: open its profile, submit a quote request with your requirements and you'll receive proposals directly. All quotes are free and come with no obligation.
How many security companies are listed in Washington?
Our directory lists 522 companies in Washington, District of Columbia. You can browse the complete list in the Washington security companies directory.